參數(shù)資料
型號(hào): MC68HC705J1Ac
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: Microcontrollers
中文描述: 微控制器
文件頁數(shù): 28/162頁
文件大小: 1085K
代理商: MC68HC705J1AC
Technical Data
MC68HC705J1A — Rev. 4.0
General Description
General Description
Figure 1-4. Crystal Connections with
Oscillator Internal Resistor Mask Option
Figure 1-5. Crystal Connections without
Oscillator Internal Resistor Mask Option
1.5.2.2 Ceramic Resonator Oscillator
To reduce cost, use a ceramic resonator instead of the crystal. The
circuits shown in
Figure 1-6
and
Figure 1-7
show ceramic resonator
circuits. Follow the resonator manufacturer’s recommendations, as the
resonator parameters determine the external component values
required for maximum stability and reliable starting. The load
capacitance values used in the oscillator circuit design should include all
stray capacitances.
MCU
C1
C2
XTAL
C4
C3
XTAL
C3
27 pF
C4
27 pF
O
O
OSC1
OSC2
V
SS
V
DD
V
SS
MCU
C1
C2
R
XTAL
C4
C3
R
10 M
XTAL
C3
27 pF
C4
27 pF
OSC1
OSC2
V
DD
V
SS
O
O
V
SS
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.
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